WORST SERVICE AND NO RESPONSE

I recently bought a car from this dealership, I had received good service whilst the deal was in progress, as soon as it had gone through and they had received the large amount of money, their service went spiraling down. After receiving my licence plates and disc, a week late, they delivered my spare key(which was broken) to a colleague of mine, without asking for me or my signature. After all this, I spoke with the branch manager Cheyhanne, who had no sympathy. thereafter i sent her this email, of which 7 days later, she still has not even bothered to respond: Good day,My question today is, when delivering such important items, should they not be given to the owner in their hands? Making sure that it is given to the correct person? Where is my signature, or whoever's signature for that matter, confirming that everything was received in correct working order? Neither you nor I have proof that anything was received. Now in my opinion, that is completely unacceptable and unprofessional. These indiscretions are what cause instances like yesterday, whereby I received a BROKEN car key. After you receive payment you no longer worry about the service you provide your customers.